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The Primary Frequency Control Method of Tidal Turbine Based on Pitch Control

机译：基于俯仰控制的潮汐轮机初级频率控制方法

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摘要

Due to the increasing penetration level of tidal power in power system,the tidal turbines can provide less frequency support than conventional generators due to their small rotor mass.This makes the power system with low inertia and cause frequency problem.This paper presents a simulation model of a tidal power farm based on a MW-level variable speed tidal turbine with doubly-fed induction generator(DFIG)developed in the simulation tool of Matlab/Simulink.According to the reserve capacity required for primary frequency control,a de-loading control method is proposed in this paper to resolve the issue of primary frequency control via tidal power plant.Based on the analysis method of the frequency control characteristics of DFIGs,it is proposed by improved variable pitch control method.The control strategy,which is based on pitch control system of tidal turbine,is proposed in order to participate into primary frequency regulation of power system.Simulation results show that the proposed control strategy is effective means the tidal turbines with DFIG generators could providing frequency support for power system when they are working under the de-loading condition in this paper.
机译：由于电力系统中的潮汐功率的穿透水平增加，由于其小转子质量，潮汐涡轮机可以提供比传统发电机更少的频率支撑。这使得电力系统具有低惯性并引起频率问题。本文提出了仿真模型基于MW级变速潮汐涡轮机的潮汐电机农场，采用双馈电流发电机（DFIG）在Matlab / Simulink的仿真工具中开发。根据初级频率控制所需的储备容量，取消加载控制在本文中提出了方法，以通过潮汐发电厂解决初级频率控制问题。基于DFIG的频率控制特性的分析方法，提出了改进的可变音高控制方法。控制策略，即基于提出了潮汐涡轮机的俯仰控制系统，以便参与电力系统的初级频率调节。仿效结果表明提出控制策略是有效的，意味着当本文中的卸载条件下工作时，具有DFIG发电机的潮汐涡轮机可以为电力系统提供频率支持。

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